Explore the evolution of frontend web development and CSS technologies in this CSSconf EU 2018 talk. Dive into Jackie Balzer's journey through Behance's codebase over seven years, covering major redesigns, framework changes, and technological shifts. Learn how to choose and implement new technologies, manage large-scale rewrites, balance technical debt, and maintain developer sanity. Gain insights on adopting preprocessors, components, and CSS-in-JS solutions while navigating the challenges of a growing and fragmented codebase. Discover practical strategies for evolving your website's frontend architecture, from early CSS implementations to modern frameworks like Vue.js and CSS Modules.